Table 2.

Thresholds for video buffer submission and display lags of the monitors. To be displayed in the next frame, a video buffer should be submitted before the vertical blank. The minimum number of scan lines (“threshold”) that must remain between the current raster position and the vertical blank at the time of buffer submission is shown below for each tested monitor and resolution (in parentheses, equivalent time). Lag is the time of the photodiode signal change following the vertical blank (mean ± SD).

Model	Type	Resolution	Refresh rate (Hz)	Threshold (Lines)	Lag (msec)
Dell P793	CRT	1024 × 768	75	40 (≅0.69 ms)	0.09 ± 0.01
3M C1500SS	LCD	1024 × 768	75	40 (≅0.69 ms)	3.39 ± 0.01
3M C2167PW	LCD	1920 × 1080	60	140 (≅2.16 ms)	2.59 ± 0.04
Dell 2001FP	LCD	1600 × 1200	60	190 (≅2.64 ms)	24.78 ± 0.03
Dell P2715Q	LCD	3840 × 2160	60	630 (≅4.86 ms)	2.10 ± 0.03